////////////////////////////////////////////////////////////////////////////////////////
//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING THIS SOFTWARE
//
//  By downloading, copying, installing or using the software you agree to this license.
//  If you do not agree to this license, do not download, install, copy or use the software.
//
// Copyright (C) 2013, AerVision Technologies Pty Ltd, all rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
//   * Redistribution's of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//
//   * Redistribution's in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//
//   * The name of AerVision Technologies, may not be used to endorse or promote products
//     derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors to demonstrate 
// www.AerCloud.net Framework as a Service API (FaaS), "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the copyright holder or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
////////////////////////////////////////////////////////////////////////////////////////

package com.aercloud.client.gui;

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;

import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;

public class PanelStep2List extends JPanel {

    private JButton btnSave;
    private JScrollPane scrollPane;
    private JList list;
    private DefaultListModel listModel;

    /**
     * Create the panel.
     */
    public PanelStep2List() {
        GridBagLayout gridBagLayout = new GridBagLayout();
        gridBagLayout.columnWidths = new int[]{0, 0};
        gridBagLayout.rowHeights = new int[]{0, 0, 0};
        gridBagLayout.columnWeights = new double[]{1.0, Double.MIN_VALUE};
        gridBagLayout.rowWeights = new double[]{0.0, 1.0, Double.MIN_VALUE};
        setLayout(gridBagLayout);
        GridBagConstraints gbc_btnSave = new GridBagConstraints();
        gbc_btnSave.fill = GridBagConstraints.HORIZONTAL;
        gbc_btnSave.gridx = 0;
        gbc_btnSave.gridy = 0;
        add(getBtnSave(), gbc_btnSave);
        GridBagConstraints gbc_scrollPane = new GridBagConstraints();
        gbc_scrollPane.fill = GridBagConstraints.BOTH;
        gbc_scrollPane.gridx = 0;
        gbc_scrollPane.gridy = 1;
        add(getScrollPane(), gbc_scrollPane);

    }
    
    public void removeSelected() {
        int selectedIndex = getList().getSelectedIndex();
        getListModel().removeElementAt(selectedIndex);
        if(getListModel().getSize() < 1) {
            getBtnSave().getAction().setEnabled(false);
        } 
        else {
            if(selectedIndex >= getListModel().getSize()) {
                selectedIndex = getListModel().getSize() - 1; 
            }
            getList().setSelectedIndex(selectedIndex);
        }
    }

    public DefaultListModel getListModel() {
        if(listModel == null) {
            listModel = new DefaultListModel();
        }
        return listModel;
    }

    public JButton getBtnSave() {
        if (btnSave == null) {
        	btnSave = new JButton();
        }
        return btnSave;
    }
    public JScrollPane getScrollPane() {
        if (scrollPane == null) {
        	scrollPane = new JScrollPane();
        	scrollPane.setViewportView(getList());
        }
        return scrollPane;
    }
    public JList getList() {
        if (list == null) {
            list = new JList(getListModel());
            list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
            list.setLayoutOrientation(JList.VERTICAL);
            list.setVisibleRowCount(-1);
        }
        return list;
    }
}
